Wax press



March 4 1924.

A; MCD. GRAY WAX PRE S S Filed March 8. 1922 2 Sheets-Sheet 2 Patented Mar. 4, 1924.

fig F F l :PATET ALANSON MCD. GRAY, OF ELIZABETH, NEW JERSEY, ASSIGNOR TO THEM. W. KELLOGG COMPANY7 or NEW YORK, N. Y.,

A CORPORATION OF DELAVARE.

WAX PRESS.

Application filed March 8, 1922.v Seria] No. 542,109.

To all whom t may concern.'

Be it known that I, ALANsoN MCD. GRAY, a citizen of the United States, residing at Elizabeth, New Jersey, have invented certain new and useful Improvementsin lVax Presses, of which the following is a full and concise description.

My invention relates to filter presses and has as one of its objects the provision or" means whereby filter presses may be operated with maximum convenience and rapidity.

A second object of my invention is to provide means whereby contaminated oil flowing from a filter press may be handled with maximum convenience and minimum loss. Further objects of my invention reside in the particular arrangement and combination of parts hereinafter described in connection with the accompanying drawing in which:

F ig. 1 is an elevation, parts being broken away `tor purposes of illustration, of a part of a filter press according to my invention,

F 1a is an elevation of the left-hand portion of the filter press illustrated in Fig. 1,

Fig. 2 is a section of a line 2 2 of Fig; 1 looking in the direction of the arrows,

Fig. 3 is a detail of one of the. auxiliary troughs appearing in dotted lines in Figs. 1 and 2. Y

In the drawing numeral l'designates, as

a whole, a filter press of the same type disclosed in my co-pending application, Serial No. 542,110, filed the 8th day of March, 1922, now matured into Letters Patent No. 1,459,911, and to which reference is made for a fuller disclosure of the details of construction and operation ot' the press.

It is well known, however, that suchV presses comprise a xed head 2, a movable head 3 mounted on horizontal rods 4f, 4 and that the space between the fixed and movable heads is iilled during the normal operation of the press by a series of alternating blanketed plates 5 and rings 6 arranged in Huid-tight contact with the heads and with each other. W'hen using such presses for removing wax from petroleum oil, the oil is forced into the space between the heads defined by the plates 5 and ringsY 6 until the spaces defined by the rings have been substantially filled with wax. It is then cus- While, however, already oil is being forced intoV the press, it filters through blankets with which plates 5 are covered and falls into a trough 10 by which it is conducted toV a catch basin or tank T. Liquid dripping from the blankets and falling into trough 10 is indicated in Fig. 2 bv character L.

lVhen, however, the press is filled with solidmaterial and the flow or" liquid has been cut oii', it is necessary to move the trough 10 to y one side in order that the wax from plates 5 and rings 6 may be discharged into the conveyor C which is illustrated as being in the bottom of the pit P below floor F on which the press is mounted,'the pit P also enclosing the trough 10 just mentioned. 1n

Vorder to permit this lateral movement of the trough 10, it is commonly mounted on transverse beams 11 within the pit P and provided with Vwheels 12, 12 on which it may.

be readily moved. However, its position below the floor F on which the workmen stand, together with its considerable weight, is hard to move and its length and positioni relative to the controlling lever .9 have made it. impossible for the workmen in charge ot' the lever 9 to move such trough, or assist in moving it, without considerableV interruption to the operation of the press. According to myinvention, I have provided means whereby the man in charge of the lever 9 may readily operatethe -tank or trough 10. The said means comprises a link 13 pivoted at one end of the trough 10 and at its other end to a lever 14: held in fixed relation to a sprocket wheel 15. Wheel 15 is driven by sprocket chain 16V which meshes in turn with a sprocke-t wheel 17 fixed to the sha-ft of end Wheel 18 which is Vmounted adjacent the handle 9. The relation of wheel 18 and lever or handle 9 is clearly illustratedin Fig. 1n. In order to transmit the operation of the wheel 18 through the horizontal distance between this wheel and the trough 10, wheel 15 is mounted on a shaft 19 to which the lever 14, previously mentioned, is directly attached. Moreover, a plurality of links 13 and levers 14 are connected between the shaft 19 and trough 10 in order that the pull on the trough may be symmetrical along its length.

Another difficulty which has ordinarily arisen in the operation of filter presses arises from the fact that the blankets on the plates are not uncommonly defective, and therefore permit wax or other contaminating material in the crude liquid or oil to pass through the blankets and to be driven down into pit T below the press proper. In order to prevent such contaminated liquid from falling into the trough and thereby contaminating the entire run of liquid coming from the press, it has been customary to place small transverse gutters or troughs 20 across the top of the trough 10 to catch the contaminated liquid dripping into it and to divert such contaminated liquid either onto the floor of the pit P or onto a secondary fioor formed on the beams 11 or some similar flooring. rlhis contaminated oil has thus presented something of a nuisance and has involved quite a little labor and expense in order to prevent its being entirely lost as well as acting as a hindrance in the ordinary operation of the press. According to my invention I avoid these difficulties by placing upon the trough 10 an auxiliary trough 21 which is fixed to trough 10 and runs the entire length thereof. Transverse gutters such as 20, which may be placed across the top of trough 10 to divert contaminated liquid and throw such contaminated liquid into trough 21 by which it is conducted to an auxiliary tank TV from which it may be pumped back or sent again through the filter press or otherwise disposed' of as desired without creating any nuisance or interfering with the operation of the press.

The individual gutters 20, according to my invention are preferably formed with a downwardly depending plate 22 fixed to that end of the gutter which is intended to be the higher one in operating` position and near the bottom of plate 22, I fix thereto a small bracket or shelf 23 adapted to rest on top of one edge of troughlO. At the other end of gutter' 20, I provide a small inverted channel 24; fixed directly on the bottom of the gutter or channel 2-1 being adapted to embrace the edges of troughs 10 and 21 where the two lie adjacent.

It will be seen that I have provided means whereby the operation of lter presses may be materially facilitated and the labor Cost reduced without in any way detracting from the results obtained in the usual course of operation.

Having thus described my invention, I claim:

1. The combination of a filter press, a trough for receiving filtered liquid flowing from said press, a track for said trough on which said trough may be moved laterally from its normal position, and an operator controlled shaft having connections with said trough whereby said trough may be moved at right angles to said shaft.

2. The combination of a filter press, a trough for receiving filtered liquid flowing from said press, a track for said trough on which said trough may be moved laterally from its normal position, and means whereby said trough may be moved on said track including an operator controlled element, a shaft parallel to said trough and connections between said shaft and trough at a plurality of points longitudinally of the trough.

3. The combination of a filter press, a main trough for receiving uncontaminated liquid from said press, a receiving tank for liquid from said main trough, an auxiliary trough parallel to said main trough, a transverse trough above said main trough for receiving contaminated liquid from said press and diverting such liquid to said auxiliary trough, and a tank for receiving contaminated liquid from said auxiliary trough.

il. The combination of a filter press, a main trough for receiving uncontaminated liquid from said press, an auxiliary trough for receiving contaminated liquid from said press, said auxiliary trough being parallel to said main trough, and said troughs being mounted for simultaneous lateral movement, and a transverse trough adapted to sit above said main and auxiliary troughs at any desired point long their lengths and to divert contaminated liquid from said main trough to said auxiliary trough.

ALANsoN MCD. GRAY. 

